Publication Raketa has examined ten widespread biology beliefs to determine which popular ideas are factual and which are contradicted by scientific evidence.
The outlet investigated claims across human anatomy, zoology and botany, finding that widespread notions such as post-mortem hair growth and three-second goldfish memories are false, while unusual traits like egg-laying mammals and fungal communication are genuine.
Many people continue to believe that hair and fingernails grow after death, that humans use only a fraction of their mental capacity, and that fish forget events instantly. According to Raketa, modern research disproves several of these ideas while confirming other surprising natural phenomena.
Human Anatomy and Physical Development
One of the most persistent myths addressed by the publication is the belief that hair and nails continue to grow after a person dies. Raketa reported that cellular division ceases entirely following death because the body no longer receives oxygen and vital nutrients, bringing all physical growth to an end.
The false impression that hair and nails have lengthened occurs because the surrounding skin dehydrates and retracts. As the soft tissue shrinks, hair roots and nail beds become far more prominent, creating the optical illusion that they have expanded.
The publication also debunked the traditional tongue map, which claims that distinct zones of the tongue are dedicated exclusively to sweet, sour, salty and bitter tastes. Scientific findings demonstrate that this model is inaccurate.
Sensory taste receptors are distributed broadly across different regions of the human tongue. As a result, each part of the tongue is capable of identifying multiple basic flavours rather than being restricted to a single taste category.
In contrast, the claim that newborn infants possess more bones than mature adults is entirely accurate. A newborn baby has approximately 270 to 300 bones in their body, whereas a fully grown adult typically possesses 206.
Raketa noted that this numerical decrease occurs naturally as a child develops and individual skeletal elements fuse together. This consolidation is particularly evident in the bones of the human skull and the vertebral column, leaving adults with fewer distinct bones.
Brain Capacity and Neurological Myths
The analysis evaluated two related misconceptions concerning the human brain: the idea that people use only 10 percent of their brainpower, and the belief that brain cells cannot regenerate.
Raketa explained that the claim regarding 10 percent brain utilisation has no scientific foundation. Brain imaging studies demonstrate that humans rely on virtually every section of their brain over the course of a normal day, even if not every area fires at the same instant or with equal intensity. Neurological activity continues even while a person is asleep.
Regarding nerve regeneration, the publication clarified that the central nervous system is not entirely incapable of renewal. New nerve cells can form in specific regions through a biological process known as neurogenesis. However, Raketa pointed out that this regenerative capacity remains strictly limited, meaning damaged neurons cannot always be replaced.
Animal Senses and Behaviour
Turning to the animal kingdom, Raketa confirmed that platypuses are indeed mammals despite their ability to lay eggs. They belong to a rare order of egg-laying mammals known as monotremes, producing offspring that hatch from eggs before nursing on maternal milk.
Unlike most other mammals, female platypuses do not have teats. Instead, milk is secreted directly through the skin on the mother's abdomen, where the newly hatched young lap it up.
The common belief that moles are totally blind was classified as an exaggeration. While moles have tiny, underdeveloped eyes adapted to their underground habitat, they are not completely devoid of sight. They remain capable of distinguishing between light and darkness, a sensory trait that assists them in navigating subterranean tunnels.
Scientific experiments have similarly overturned the myth that goldfish have a memory span of only three seconds. Research shows that goldfish can retain information about food routes, colours and specific environmental signals for days or even months at a time.
Communication in Nature and Fungal Biology
In insect behaviour, the report confirmed that honeybees perform a specialised waggle dance to communicate the precise coordinates of a food source to other worker bees. By interpreting the rhythm and angle of the dance movements, fellow workers can calculate both the direction and the distance to nectar.
Bees orient their movements relative to the position of the Sun. This complex communication mechanism was originally decoded by Austrian zoologist Karl von Frisch, whose pioneering research on animal behaviour earned him a Nobel Prize.
Beneath the forest floor, fungal networks genuinely assist trees with communication and resource sharing. Thin fungal threads form extensive underground connections with tree root systems in a symbiotic partnership known as mycorrhiza.
Through these mycorrhizal pathways, plants receive essential water and soil nutrients from fungi. The fungal network can also transmit chemical warning signals between trees, alerting neighbouring plants to the presence of encroaching insect pests.
Finally, genetic research has confirmed that fungi are more closely related to animals than to plants. Fungi do not manufacture their own food through photosynthesis like flora, but instead absorb organic nutrients from their environment. Furthermore, their cell walls are constructed with chitin, a structural carbohydrate found in animal exoskeletons rather than plant cellulose.
